Heh, well even though we beta testers have access to unreleased props doesn't mean we can use them. We can't put those new props in to custom maps for the public, because the props haven't been released yet.

And as far as dragon skulls go, making some new props may take some work, but it's worth it for the larger projects.

I can use the Dev resources for No more room in hell to create maps since I am a beta tester. For them you are allowed to show screenshots of your work to the public but nothing official obviously. However I can only use Source Engine 2007 instead of 2009 and this is the same for PVKII.